I been trying!!

Im trying to have a baby for the past 4 years and it didn't happen yet! My co workers talk behind my back saying why I haven't had a baby yet. They shut up when I walk by. They don't know what's going on cause I don't talk about personal stuff to them cause they gossip to much at work. They don't how I feel? I have family members saying behind my back if you don't have one now u won't have any. I'm getting old.You won't have a future. I'm not happy about this situation.